气候变化领域集成服务门户(CCPortal): Hierarchical porous carbon nanofibers for compatible anode and cathode of potassium-ion hybrid capacitor

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DOI	10.1039/d0ee00477d
	Hierarchical porous carbon nanofibers for compatible anode and cathode of potassium-ion hybrid capacitor
	Hu X.; Zhong G.; Li J.; Liu Y.; Yuan J.; Chen J.; Zhan H.; Wen Z.
发表日期	2020
ISSN	17545692
起始页码	2431
结束页码	2440
卷号	13 期号:8
英文摘要	The development of electrode materials with the capability of balancing kinetics and capacity between a battery-type anode and capacitor-type cathode is still a grand challenge for potassium-ion hybrid capacitors (PIHCs). Herein, we report the design and synthesis of phosphorus/nitrogen co-doped hierarchical porous carbon nanofibers (PN-HPCNFs) that feature desirable one dimensional (1D) structure and favorable electrochemical properties for PIHC application. We demonstrated that the as-prepared PN-HPCNFs presented a highly attractive performance in terms of capacity or capacitance and durability as both the battery-type anode and capacitor-type cathode of PIHCs, which endows it with great potential for practical application in full PIHCs by delivering a high energy density of 191 W h kg-1 and a high power output of 7560 W kg-1 as well as an ultralong lifespan (82.3% capacity retention after 8000 cycles). Systematic characterization analysis and first-principle calculations demonstrated that the hierarchical pores in the 1D structure, heteroatom P/N co-doping, and enlarged interlayer graphite spacing in the APN-HPCNF contributed synergistically to the outstanding electrochemical performance of PIHCs. © 2020 The Royal Society of Chemistry.
英文关键词	Carbon nanofibers; Cathodes; Electric batteries; Hybrid materials; Porous materials; Potassium; Supercapacitor; Capacity retention; Electrochemical performance; Electrode material; First principle calculations; Hierarchical pores; Hierarchical porous carbon nanofibers; High energy densities; One dimensional (1D) structures; Anodes; carbon nanotube; electrochemical method; electrode; equipment; graphite; performance assessment; reaction kinetics
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189598
作者单位	CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou Fujian, 350002, China; College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
推荐引用方式 GB/T 7714	Hu X.,Zhong G.,Li J.,et al. Hierarchical porous carbon nanofibers for compatible anode and cathode of potassium-ion hybrid capacitor[J],2020,13(8).
APA	Hu X..,Zhong G..,Li J..,Liu Y..,Yuan J..,...&Wen Z..(2020).Hierarchical porous carbon nanofibers for compatible anode and cathode of potassium-ion hybrid capacitor.Energy & Environmental Science,13(8).
MLA	Hu X.,et al."Hierarchical porous carbon nanofibers for compatible anode and cathode of potassium-ion hybrid capacitor".Energy & Environmental Science 13.8(2020).